40
asphalt
attention
background
behaviour
black
blue
boundary
car
caution
circle
coding
color
danger
design
driving
forbidden
grass
highway
informative
infringement
instructive
law
mark
material
normative
number
orange
outdoor
pole
red
respect
risk
road
roadsign
rolling
round
rule
safe
safety
sign
sky
speed
traffic
transportation
travel
vehicle
vertical
white
zone